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Guinness Brownies with Guinness Frosting

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Decadent brownies with a slightly boozy twist from reduced Guinness, topped with a creamy frosting that echoes roasted malt notes.

Ingredients

Scale
  • 1 (11.2–12-ounce) bottle Guinness Draught Stout beer, reduced
  • 3/4 cup unsalted butter
  • 2 (4-ounce) bars semi-sweet chocolate, coarsely chopped
  • 1 and 1/4 cups granulated sugar
  • 3 large eggs, at room temperature
  • 1 teaspoon pure vanilla extract
  • 1 cup all-purpose flour
  • 1/2 teaspoon salt
  • 1/2 teaspoon espresso powder (optional)
  • 1/2 cup unsalted butter, softened (for frosting)
  • 2 cups confectioners’ sugar
  • 2–3 tablespoons reduced Guinness (for frosting)
  • 1 teaspoon espresso powder (for frosting)
  • 1/2 teaspoon pure vanilla extract (for frosting)
  • 1/4 teaspoon salt (for frosting)

Instructions

  1. Reduce the Guinness: In a small saucepan, bring the Guinness to a boil over medium-high heat. Reduce the heat to medium and let it simmer until it reduces down to 2/3 cup, about 12 to 15 minutes. Set aside to cool for at least 10 minutes.
  2. Prepare the pan and oven: Preheat the oven to 350°F (175°C) and grease a 9-inch square baking pan.
  3. Melt butter and chocolate: In a large microwave-safe bowl, combine the 3/4 cup butter and the chopped semi-sweet chocolate. Melt in 30-second increments, whisking after each until smooth.
  4. Combine sugar and Guinness: Whisk in the granulated sugar and 1/2 cup of the reduced Guinness until fully combined and glossy.
  5. Add eggs and vanilla: Add the eggs and vanilla extract, whisking until well incorporated.
  6. Add dry ingredients: Add the flour, salt, and optional espresso powder. Whisk until just combined.
  7. Bake the brownies: Pour the batter into the prepared baking pan and bake for 32 to 35 minutes.
  8. Cool completely: Let the brownies cool completely in the pan before frosting.
  9. Make the frosting: Beat the 1/2 cup softened butter until smooth, then gradually add the confectioners’ sugar and mix until combined.
  10. Finish the frosting: Beat in 2 tablespoons of the reduced Guinness, espresso powder, vanilla extract, and salt.
  11. Frost and serve: Frost the cooled brownies and cut into squares.

Notes

Store frosted brownies at room temperature for up to 3 days or refrigerate for up to 7 days. For freezing, wrap tightly for up to 3 months.

Nutrition

Keywords: brownies, guinness, dessert, chocolate, beer

Find it online: https://swifttasty.com/guinness-brownies-with-guinness-frosting/